Steam road-roller



(No Model.)

I 3 Sheets- Sheet 1. J. SCHEERER.

STEAM ROAD ROLLER.

Patented Nov. 16, 1886.

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(No Model.) 3 Shets-Sheet 2. J. SOHEERER.

STEAM ROAD ROLLER.

No. 352,574. I Patented Nov. 16, 188 6.

Witness a5: Iyhzntur: "(ti/0? (No Model.) I 3 Sheets-Sheet 3'. J. SOI-IEERER.

STEAM ROAD ROLLER. No. 352,574. Patented Nov. 16, 1886.

WI'THEEASEE. I InUEmDr:

N4 PETERSv Fboto-Lllhognphar, Wnhinglan. 11C.

UNITED STATES Fries.

PATENT STEAM ROAD-ROLLER.

SPECIFICATION forming part of Letters Patent No. 352,574, dated November 16,1886.

T0 aZZ whom it may concern.-

Be it known that I, Josnrrr SOHEERER, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented a new and Improved Steam Road-Roller, of which the following is a specification.

This invention relates'to that class of rollers which, being operated by steam -poWer, are used principally in the construction of roads made of composites of asphaltum or bituminous rock and gravel, concrete, macadam,.and

. other similar substances needing to be solidly Figurel is a longitudinal side elevation with a portion of the housing broken away to show behind a section of water-tank. Fig. 2 is a combination of endview and transverse section through center of roller and driving-gear. Fig. 3 is a vertical transverse section showing the steering-wheels and apparatus connected therewith, Fig. 4 being a plan of the same.

In all the figures the same letters of reference are used to indicate the same parts.

A is the steam-boiler, which may be of the direct flue and return tubular pattern, the smokestack B and furnace 0 being at the same end.

D is the steam-dome.

E is one of a pair of steam-engine cylinders set side by side on top of the boiler and connecting with the cranks F on the shaft F upon the outer end of which is one of apair of miter gear-wheels, G. f fare the bearings for this crank-shaft F", which are firmly secured on the shell of the boiler.

H is an upright shaft transmitting motion from the engine-shaft to the roller I. This shaft is supportedin the bearings f X and steprounded by a number of returirtubes.

Applicati. 11 filed April 28, 1886. Serial No. 200,494. (No model) the dome to the hollow end of the axle at k,

where a suitable stuffing-box and gland is provided, for the axle must turn with the roller, and, as the pipe must of course be stationary, there will need to be a packing provided where it enters the axle. Aholeisshown at 70*, lead ing from the steam passage-way, bored in center of the axle into the interior of the roller. The condensed steam will be drawn off periodically by opening the cock at b. Acock, 0, and steam-gage d is provided on this pipe, so that it may always be seen what pressure and consequent temperature of steam passes into the interior of the roller, which may be regulated by the opening and closing of the cock, for it is important to avoid having the roller either too hot or too cold. Experience will teach the operator just how warm the roller should be to suit thematerial used for making the road. may be dispensed with in operating upon "concrete, macadam,and such like materials, which are laid cold. 3

N is the frame of the machine, made of flanged iron substantially joined together. It is suspended upon the outer ends of the axles of both the steeringwheels O and the roller 1.

P is a housing, of stout sheet-iron, which is made fast to the frame T.

Q is a water-tank used for storing the'supply for theboiler, and also for giving additional weight to the machine. It rests upon the frame N on either side of the boiler, and

.itself supports the forward end of the boiler by being connected thereto by angle-irons R.

Of course this part of the invention The back end of the boiler is supported directly on the frame N by the brace S, of any suitable form.

The furnace of the boiler is in the forward part of a large central flue, which flue'is sur- The details of the construction of the boiler, however,'may be omitted from this description and the drawings, because they" may be variously designed to suit the conditions of each case, and their exact form does not form an essential feature of the present invention.

As to the steering apparatus shown in Figs. 3 and 4, the wheels 0 are revolved loosely upon the axles T. The collars t, heldin place by the set'screws t", serve to keep the wheels in position upon their respective axles. The outer end of each axle is supported in a box, U, which has two set screws, t f, passing through the top and bottom, to bear against the collar a, which is fitted tightly on the end of the axle, so that each axle, neither of which revolves, may be swung about in a horizontal plane, the set-screws in the outer collar forming thepivotal point upon which the axles swing.

The inner end'of these axles have toothed segmental gears fastened to them or solid with them, as preferred, and between the opposing faces of these gears a pinion, W, is provided, which, being secured to the lower end of the upright shaft X, engages with the teeth of the segmental gears, and,as this upright shaft is turned by the hand-wheel Y to the right or to the left, the steering-wheels are also correspondingly moved to the effect of changing the direction of travel of the machine more or less sharply, according to the degree of angularity given to the steering-wheels with relation to the main roller. The upright shaft X is supported in the column Z. A casing, a, is formed of light iron round about the steering'wheels and upright column in such form as to protect the steering apparatus and lear e accommodation for storing fuel for the boiler. This casing requires no elaborate description. The drawing clearly illustrates its general form. De-

viations are permissible in the mere details of its construction. All that is required is to box in the apparatus to keep it from dust and dirt and leave a proper receptacle for the fuel.

As before suggested, mere subordinate details may be varied, and, as it would be burdensome in this specification to enter into minute details, they are purposely omitted. The eonstructer will obtain all the information he needs as to the invention from the drawings and the preceding specification.

The operation is simpleand as follows: The material forming the road is laid and evenly spread. The roller, in the case of asphaltum or similar pavements, is properly heated by admitting steam therein from the boiler. The engineer attends to the steering apparatus to give desired direction to the machine. By this means, and as the steam-heated roller is passed forward and backward over the laid asphaltum road-bed a sufficient number of times, the projections due to the first laying of the material will be softened and evenly and. smoothly rolled down, while the limpid portion of the asphaltum will be pressed down and embedded in the body of the pavement below the surface, leaving the surface hard when cooled and not easily affected by the suns rays.

Having thus described my inventiomwhat I claim, and desire to secure by Letters Patent, ]S-- t The steam road-roller herein described, consisting, essentially, of the horizontal boiler A, supported upon suitable frame directly over the roller I, horizontal engine E, crank-shaft F, vertical shaft H, bevel gear and pinion L L", and roller I, arranged substantially as herein set fort-h.

In testimony that I claim the foregoing I have hereunto set my hand and seal.

JOSEPH SGHEERER. [L. s.] Witnesses v G. W. M. SMITH,

CHAS. E. KELLY. 

